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Heavy Metals in Brown Rice ( Oryza sativa L.) and Soil After Long-Term Irrigation of Wastewater Discharged from Domestic Sewage Treatment Plants

Chung, B.Y ; Song, C.H ; Park, B.J ; Cho, J.Y

Pedosphere, 2011, Vol.21(5), pp.621-627 [Tạp chí có phản biện]

ISSN: 1002-0160 ; E-ISSN: 2210-5107 ; DOI: 10.1016/S1002-0160(11)60164-1

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  • Nhan đề:
    Heavy Metals in Brown Rice ( Oryza sativa L.) and Soil After Long-Term Irrigation of Wastewater Discharged from Domestic Sewage Treatment Plants
  • Tác giả: Chung, B.Y ; Song, C.H ; Park, B.J ; Cho, J.Y
  • Chủ đề: Accumulation ; Domestic Wastewater ; Ground Water Irrigation ; P 2o 5 ; Total N ; Agriculture
  • Là 1 phần của: Pedosphere, 2011, Vol.21(5), pp.621-627
  • Mô tả: A pot experiment was conducted in a plastic film house to evaluate the translocation and uptake of heavy metals (Pb, Cd, Cu, and Zn) into brown rice ( L.) and the heavy metals residues in soils which had previously been irrigated with domestic wastewater for a long time (3 years). The range of Pb, Cd, Cu, and Zn was 5.10 ± 0.01, 0.105 ± 0.017, 5.76 ± 0.42, and 23.56 ± 1.40 mg kg , respectively in the domestic wastewater-irrigated soil, and 0.370 ± 0.006, 0.011 ± 0.001, 0.340 ± 0.04, and 2.05 ± 0.18 mg kg , respectively, in the domestic wastewater-irrigated brown rice. The results indicated that application of domestic wastewater to arable land slightly increased the levels of Pb, Cd, Cu, and Zn in soil and brown rice ( < 0.01). The concentrations of heavy metals in brown rice were lower than the recommended tolerable levels proposed by the Joint FAO/WHO Expert Committee on Food Additives. However, the continuous monitoring and pollution control of hazardous materials from domestic wastewater are needed in order to prevent excessive build-up of heavy metals in the food chain.
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 1002-0160 ; E-ISSN: 2210-5107 ; DOI: 10.1016/S1002-0160(11)60164-1

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